Improvement in sectional steam-boilers



3 Sheets-SheetL V. D. ANDERSON. SECTIONAL STEAM BOILER. No.174,931.Patented. March 21,1876.

3 Sheets-Sheet 2. V D. ANDERSON.

SECTIONAL STEAM BOILER. v No. 174,931. Patented March 21,1876.

75532 6319! Inverflor:

N-PETERS, FHOTOJJYHOGRAPHER. WASHINGTON. D C.

3 Sheets-Sheet 3.

V. D. ANDERSON.

SECTIONAL STEAM BOILER.

No. 1745931. Patented March 21,1876.

772712 epiaw:

QWQ M VIALERIUS D. ANDERSON,

PATENT O F CE.

OF SPRINGFIELD, OHIO.

IMPROVEMENT IN SECTIONAL STEAM-BOILERS.

Specification forming part of Letters Patent No. 174,93 1, dated March21, 1876; application filed March 6, 1875,

.TO Ctll whom it may concern Be it known that I, VALERIUS D. ANDER- SON,of Springfield, in the county of Clarkeunited by means of tubeshavingascrew-thread on each end, so that the boiler, as a whole, shallconsist simplyiof a series of tubes and heads or manifolds, screwedtogether without the use of any bolts, rivets, tie-rods, or similardevices, and whereby a boiler of any required capacity can be producedby simply screwing on additional sections, as hereinafter more fully setforth.

Figure 1 is a perspective view of a boiler made on my plan. Fig. 2. is alongitudinal section of, a boiler set in brick-work. Fig. 3 is asectional view, showing the manner of connecting the sections, and Fig.4 is a perspective view of a single section detached.

The object of this invention is to afford a very simple and cheap methodof constructing boilers, and also to enable them to be increased orreduced-in size, as may be required, to adapt them to the various usesfor which they may be required.

- To construct a boiler on my plan I provide a hollow cast-iron head, A,as.represented in Figs. 1 and 4, and also two cast-iron heads or boxes,B, for each section. I then provide a series of wrought-iron tubes, 0,all of uniform lengths, and having right and left hand screwthreads cuton their ends, there being corresponding holes with screw-threads cutinthe cast-iron heads to receive the ends of the tubes 0, the heads A andB being technically known as manifolds. The tubes 0 and the manifolds,beingthus provided, are united by simply screwing the tubes into thecast-iron manifolds, thereby forming a section, as shown in Fig. 4. Theparts 3 have large holes made in their sides to receive the short tubesI, by

which one section is united to another, these tubes, like the others,being provided with a right and left hand thread at their ends. The

tubes 0 are divided into two sets, the lower set inclining upward fromfront torear, while the upper tier is inclined in the oppositedirection, as shown in Figs. 2 and 4, for the purpose of insuring arapid circulation of the v water and the more ready escape of the steamthe cast-iron heads or manifolds, and that they are united by simplyscrewing the parts together, thereby dispensing with all flanges, bolts,rivets, and tie-rods ordinarily used in boilers, thus rendering themexceedingly cheap to construct and easy to set up or take down. By thismode of construction the boilers can be shipped in pieces, and set up byany ordinary workman; and one great advantage of them is that they canthus be carried in pieces through doors and passages where an ordinaryboiler could not pass, and be then set up, whenin place, in a shortspace of time and with but little labor.

The sections may be made of any desired size, the tubes being increasedin diameter as they are increased in length, the size of the sectionsdepending somewhat upon the purpose for which the boilers are intended.It will be seen that any number of sections may be added at each side ofthe central section, and that thus a boiler of almost any capacity maybe produced without altering the size of the sections. If a very largenumber of sections be thus united in one boiler it would be advisable tointerpose, at intervals, two or more of the central sections 0, with asteamdrum for each, all the steam-drums being united by a pipe for thepurpose of allowing a more ready escape of the steam from the sections,and equalizing the pressure.

As shown in Figs. 2 and 3, I locate a curved plate, 0, in the upper partof the manifold O,

at the point where the steam passes up into the drum E, to assist inpreventing the water from being forced or carried up with the steam.

It is obvious that very small boilers made on this plan may be providedwith a metallic casing; but for those of any considerable size I prefera brick setting; and in order to obtain the best results I set them asrepresented in Fig. 2, in which L represents the brickwork surroundingand inclosing the entire boiler. The fireplace is built under the frontend, G representing the grate-bars. The bridge-wall F extends up to thelower tubes; and for the purpose of directing the flame and heated gasesI arrange a series of plates, e, l, n', and u, as shown in Fig. 1, and,partially in section, in Fig. 2. By these means the flame and gaseswhich rise from the fuel first pass up at the front under the plate I,by which they are made to pass laterally between the tubes and up underthe plate u in front of plate :0, from whence they pass laterally backover the plate I, and from thence backward among the tubes in the rearpart, and thence downward to and out of the opening P at the rear, asshown in Fig. 2.

A mud-drum, D, is located in rear of the wall F, and is connected, bypipes a, with the lower manifolds B, as shown in Figs. 1 and 2, thoughthe connection may be made at other points, if desired.

By this mode of setting or casing the boiler and arranging the platesfor directing the flame and heat a most economical use of the fuel iseifected.

A boiler constructed on this plan is capable of use for all the ordinarypurposes for which steam-boilers are used, both for heating buildingsand for supplying engines. It is exceedingly strong, and therefore safe,thus specially adapting it for use by farmers and for all domesticpurposes, as well as for shops and factories. Its simplicity andcheapness of construction, together with the ease by which it may beincreased or decreased in size, render it especially well adapted to thegreat variety of purposes for which boilers are now used.

Having thus described my invention, what I claim is 1. A section for asteam-boiler, composed of the manifolds A and B B, each cast complete ina single piece, and united by the wrought-iron tubes 0, having aright-hand screw-thread on one end and a left-hand thread on theopposite end, substantially as described.

2. A steam-boiler composed of a series of sections, constructed as aboveset forth, said sections being united by the connecting-thimbles I,substantially as shown and described.

3. In combination with a steam-boiler having a series of horizontaltubes, the plates 0, 1,02, and u, arranged substantially as set forth,whereby the products of combustion are made to pass laterally andvertically, forward and back, up and down, as described.

VALERIUS D. ANDERSON.

Witnesses:

H. S. SHowERs, D. L. CRAFT.

